In my last blog I wrote about optimizing the boot-times using runit and a special kernel. As of today I switched to systemd in Lunar Linux and I’m using connman for networking; Let’s take a look at the boot-times again…
some time ago I wrote a small document about MySQL’s COALESCE usage. Today I was asked to help with such a construct for a similar usage-scenario. Here’s the result:
Currently I’m working on some sort of shipping-system for a customer. It turned out that i was spending 3 days looking for a problem with my query while there was no problem. Well, apart from phpmyadmin 🙂 But, lemme tell you later about it.
I have a few boxes around at home, so if i do video-editing i’d like to benefit from that. We can use some avisynth plugins/enhancements to do so. There are two things we might do: a) running filters in parallel b) handing filters to another box (networking). The problem with multiple cores in Linux is that it’s not easily possible to run Avisynth on many cores in fact it’s per default just running on one core.
There was an entry about vswap in the OpenVZ blogs and i love that new feature. So i decided to build my own kernel in debian with those patches to get that functionality. Continue to read if you’re interested in VSWAP and how to setup your kernel to make use of it.
Since I’m working with avisynth I’ve always been impressed about people who came up with convolution stuff, many numbers and I had no idea what they mean. Reading the help pages on avisynth.org didn’t help – For all people who wanted to know how that works, here’s a little guide (thanks to Kuukunen for explaining)
While many people report that WD Green Discs are „bad“ i wouldn’t say so. I’d say they’re the best SATA drives I’ve ever had – even with the problematic load-cycle-count. But let’s take a closer look at these discs.
Hello, i’m using software raid in linux for some years now. Recently when playing around a bit i found out a few interesting things, which i don’t want to hide from ya. However, at some parts of my article you might lose data – So always do a backup, and look up everything in the man pages to fully understand what you’re doing – You’re doing everything written here on your own risk.
The usual problem, if you want to set up for example a software raid 5 – You got only 3 discs, you’re first creating the raid array with only 2 and one failed disk. Later then you add the third disk. Something similar is also possible with ZFS using a sparse file. In the following Article i’ll explain how.
I was using OpenSolaris ago some years, i really liked how stable the system was, though due to a few reasons i switched back to linux. For example due to missing energy saving for my CPU (Which is supported in Windows, FreeBSD and Linux, just not in OSOL), missing drivers for my DVB-T Card and i didn’t find out how to use OpenSolaris for Games (at that time i needed a low latency kernel and 1000hz for my gaming mouse – I wasn’t able to configure that properly in OpenSolaris – This isn’t bad at all, i think OSOL was/is more optimized for server usage. However – Some of the features which i had in OpenSolaris i’d love to have at Linux: